US3305485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for the manufacture of a bar by segregation from a melt
Assignee: US Philips Corp
•
Filing: 1963-04-16
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Granted: 1967-02-21
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Expires: 1983-04-16
Abstract
No abstract record available.
Inventors
- 👤 Burmeister Jurgen
- 👤 Graffenberger Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:51
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; C; C30; C30B; C30B11/00; C30B11/04; C30B11/08; C30B11/10; C30B15/00; C30B15/02; C30B29/00; C30B29/10; C30B29/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF MANUFACTURING BY GROWING A BAR OF CRYSTALLINE MATERIAL HAVING A SUBSTNATIALLY HOMEGEOUS COMPOSITION OVER AT LEAST A PART OF ITS LENGTH FROM AN INCONGRUENTLY SOLIDIFYING MELT CONTAINING AT LEAST TWO CONSTITUENTS, THE TOTAL COMPOSITION OF SAID MATERIAL SUBSTANTIALLY DIFFERING FROM THAT OF THE MELT ASIDE FROM DIFFERENCES IN DOPANT CONCENTRATIONS, COMPRISING PROVIDING A VESSEL FOR HOLDING A SMALL QUANTITY OF A MELT AND A SEPARATE CONTAINER FOR HOLDING A LARGE QUANTITY OF A MELT AND A NARROW TUBE CONNECTING THE CONTAINER AND THE VESSEL AND ALLOWING MELT TO FLOW THERETHROUGH, PROVIDING IN SAID VESSEL A MELT WHOSE COMPOSITION DIFFERS FROM THE SUBSTANTIALLY HOMOGENEOUS COMPOSITION TO BE GROWN,
Claim 2
Independent Claim
110 words
A METHOD OF MANUFACTURING BY GROWING A BAR OF CRYSTALLINE MATERIAL HAVING A SUBSTNATIALLY HOMEGEOUS COMPOSITION OVER AT LEAST A PART OF ITS LENGTH FROM AN INCONGRUENTLY SOLIDIFYING MELT CONTAINING AT LEAST TWO CONSTITUENTS, THE TOTAL COMPOSITION OF SAID MATERIAL SUBSTANTIALLY DIFFERING FROM THAT OF THE MELT ASIDE FROM DIFFERENCES IN DOPANT CONCENTRATIONS, COMPRISING PROVIDING A VESSEL FOR HOLDING A SMALL QUANTITY OF A MELT AND A SEPARATE CONTAINER FOR HOLDING A LARGE QUANTITY OF A MELT AND A NARROW TUBE CONNECTING THE CONTAINER AND THE VESSEL AND ALLOWING MELT TO FLOW THERETHROUGH, PROVIDING IN SAID VESSEL A MELT WHOSE COMPOSITION DIFFERS FROM THE SUBSTANTIALLY HOMOGENEOUS COMPOSITION TO BE GROWN,
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |